23862385981 has 12 divisors (see below), whose sum is σ = 27976862208. Its totient is φ = 20292417432.

The previous prime is 23862385957. The next prime is 23862386021. The reversal of 23862385981 is 18958326832.

It is not a de Polignac number, because 23862385981 - 2⁵ = 23862385949 is a prime.

It is a super-2 number, since 2×23862385981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23862385081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1911051 + ... + 1923496.

It is an arithmetic number, because the mean of its divisors is an integer number (2331405184).

Almost surely, 2^23862385981 is an apocalyptic number.

It is an amenable number.

23862385981 is a deficient number, since it is larger than the sum of its proper divisors (4114476227).

23862385981 is a wasteful number, since it uses less digits than its factorization.

23862385981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834688 (or 3834681 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 55.

The spelling of 23862385981 in words is "twenty-three billion, eight hundred sixty-two million, three hundred eighty-five thousand, nine hundred eighty-one".